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CVE-2026-80599

HIGHCVSS 8.1/10EPSS 0.18%

Last modified

CVE-2026-80599 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible eth_hdr proto field When batadv_get_vid() accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible eth_hdr proto field When batadv_get_vid() accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to other call sites, batadv_dat_get_vid() and its caller didn't make sure this is true. This could have caused an out-of-bounds access.

Metrics

CVSS 3.1
8.1/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS Probability
0.18%

7.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= be1db4f6615b5e6156c807ea8985171c215c2d57, < da3677b5ed362742d30ceab31bfafcdc74dc2642; >= be1db4f6615b5e6156c807ea8985171c215c2d57, < 6d3ea37074bb747f745d28138f87745ba9bd97c5; >= be1db4f6615b5e6156c807ea8985171c215c2d57, < 7913935d41f166c367bbf7cc76a79e50044388e8; >= be1db4f6615b5e6156c807ea8985171c215c2d57, < 3c62694c31f043568c3f4784b8d247cc3bea6b4c; >= be1db4f6615b5e6156c807ea8985171c215c2d57, < 5836a050d02e9598fa0f71e88dde28b63dfa35e3; >= be1db4f6615b5e6156c807ea8985171c215c2d57, < 8f76277d02176cd739945bba3379448e2e22e799; >= be1db4f6615b5e6156c807ea8985171c215c2d57, < 4407ff3af469356f9641c4a6e7072309bae86bea; >= be1db4f6615b5e6156c807ea8985171c215c2d57, < 26560c4a03dc4d607331600c187f59ab2df5f341
LinuxLinux3.13

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80599?
In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible eth_hdr proto field When batadv_get_vid() accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to other call sites, batadv_dat_get_vid() and its caller didn't make sure this is true. This could have caused an out-of-bounds access.
How severe is CVE-2026-80599?
CVE-2026-80599 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-80599?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST